CVE-2018-13383
Fortinet FortiOS and FortiProxy Out-of-bounds Writ - [Actively Exploited]
Description
A heap buffer overflow in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.10, 5.4.0 through 5.4.12, 5.2.14 and earlier and FortiProxy 2.0.0, 1.2.8 and earlier in the SSL VPN web portal may cause the SSL VPN web service termination for logged in users due to a failure to properly handle javascript href data when proxying webpages.
INFO
Published Date :
May 29, 2019, 6:29 p.m.
Last Modified :
March 16, 2021, 3:48 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
A heap buffer overflow in Fortinet FortiOS and FortiProxy may cause the SSL VPN web service termination for logged in users.
Apply updates per vendor instructions.
Public PoC/Exploit Available at Github
CVE-2018-13383 has a 3 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-13383.
| URL | Resource |
|---|---|
| https://fortiguard.com/advisory/FG-IR-18-388 | Vendor Advisory |
| https://fortiguard.com/advisory/FG-IR-20-229 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
安全类各家文库大乱斗
HTML CSS JavaScript Go Python Shell C
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-13383 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-13383 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Mar. 16, 2021
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type https://fortiguard.com/advisory/FG-IR-18-388 Mitigation, Vendor Advisory https://fortiguard.com/advisory/FG-IR-18-388 Vendor Advisory Changed Reference Type https://fortiguard.com/advisory/FG-IR-20-229 No Types Assigned https://fortiguard.com/advisory/FG-IR-20-229 Vendor Advisory Removed CWE NIST CWE-119 Added CWE NIST CWE-787 Changed CPE Configuration OR *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions up to (excluding) 6.0.5 OR *cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* versions up to (including) 1.2.8 *cpe:2.3:a:fortinet:fortiproxy:2.0.0:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions up to (including) 5.2.14 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 5.4.0 up to (including) 5.4.12 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 5.6.0 up to (including) 5.6.10 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (including) 6.0.4 -
CVE Modified by [email protected]
Mar. 09, 2021
Action Type Old Value New Value Changed Description A heap buffer overflow in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.10, 5.4.0 to 5.4.12, 5.2.14 and below in the SSL VPN web portal may cause the SSL VPN web service termination for logged in users due to a failure to properly handle javascript href data when proxying webpages. A heap buffer overflow in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.10, 5.4.0 through 5.4.12, 5.2.14 and earlier and FortiProxy 2.0.0, 1.2.8 and earlier in the SSL VPN web portal may cause the SSL VPN web service termination for logged in users due to a failure to properly handle javascript href data when proxying webpages. Added CVSS V3.1 Fortinet, Inc. AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Removed Reference http://www.securityfocus.com/bid/108539 [No Types Assigned] Removed Reference https://devco.re/blog/2019/08/09/attacking-ssl-vpn-part-2-breaking-the-Fortigate-ssl-vpn/ [No Types Assigned] Removed Reference https://i.blackhat.com/USA-19/Wednesday/us-19-Tsai-Infiltrating-Corporate-Intranet-Like-NSA.pdf [No Types Assigned] Added Reference https://fortiguard.com/advisory/FG-IR-20-229 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 22, 2020
Action Type Old Value New Value Changed Description A heap buffer overflow in Fortinet FortiOS all versions below 6.0.5 in the SSL VPN web portal may cause the SSL VPN web service termination for logged in users due to a failure to properly handle javascript href data when proxying webpages. A heap buffer overflow in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.10, 5.4.0 to 5.4.12, 5.2.14 and below in the SSL VPN web portal may cause the SSL VPN web service termination for logged in users due to a failure to properly handle javascript href data when proxying webpages. -
CVE Modified by [email protected]
Aug. 29, 2019
Action Type Old Value New Value Added Reference https://i.blackhat.com/USA-19/Wednesday/us-19-Tsai-Infiltrating-Corporate-Intranet-Like-NSA.pdf [No Types Assigned] Added Reference https://devco.re/blog/2019/08/09/attacking-ssl-vpn-part-2-breaking-the-Fortigate-ssl-vpn/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 03, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/108539 [No Types Assigned] -
Initial Analysis by [email protected]
May. 30, 2019
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type https://fortiguard.com/advisory/FG-IR-18-388 No Types Assigned https://fortiguard.com/advisory/FG-IR-18-388 Mitigation, Vendor Advisory Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions up to (excluding) 6.0.5
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-13383 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-13383
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.82 }} 0.24%
score
0.79400
percentile